Woodworking-machine.



M. HUTCHINSON.

WOODWORKING MACHINE.

APPLICATION FILED MAR. 7. I918.

1,283,196., Patented Oct. 29, 1918.

4 SHEETS-SHEET 1.

,lmmuumm 1| if X 1 J IHHHH:IHHHHJMII M. HUTCHINSON. WOODWORKING MACHINE.

APPLICATION FILED MAR I 1918' Patented Oct. 29, 1918.

4 SHEETS-SHEET 2- M. HUTCHINSON.

WOODWORKING MACHINE.

APPLICATION FILED MAR. 7. 1918.

1,288,196.. Patented 001;. 29, 1918.

4 SHEETS-SHEET 3.

M. HUTCHINSON.

WOODWORKING MACHINE.

APPLICATION FILED MAR. 1. 1918.

1,283,196, Patented Oct. 29, 1918 4 SHEETS-SHEET 4.

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' To all whom it may concern: 1

Be it known that I, MACKINTOSH Huron- InsoN, a subject of the King ofGreat Britam, residing at Toronto, in the Provincepf Ontarlo andDOIlllIllOIl of Canada, have 1nvented certain new and usefulImprovements in Woodworking-Machines; and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable othersskilled' inthe art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification. r

My invention relates to wood working machines, adapted, among otheruses, for sawing in mitering, cross-cutting, dadoing and kindredoperations, and adapted to have its motor coupled-up with a machine forripping, for sandpapering and for other purposes so that combinedoperations can be carried out by operatively connecting-up with thesawing machine the necessary parts for carrying out the other operationsThe object of the present invention is to improve various features ofthe machine so as to afford greater ease and facility of operation inits various parts, and also increase I its stability, and durability andcompact ness.

To the accomplishment of the foregoing and such other objects as mayhereinafter appear the invention consists in the features hereinafterparticularly described and then sought to be clearly defined by theclaims,

reference being had to the accompanying drawings forming a part hereof,and in which porting bracket, looking carries the. saw spindle;

Figure 1 is' a central vertical section through the machine, with someparts broken away and others omitted; A

Fig. 2 is'a lan view, enlargbd scale, of the traveling rame or carriageand its sup: porting bracket;

Fig. 3 is a side elevation of the same parts, with one of the barsor'rods of the carriage broken away;

Fig. 4 is an end view of the carriage supat the end which Fig. 5 is across section through the carriage and supporting bracket on the line 55of Fig. 3, looking in the direction of the I arrows; i

Fig. 6 is a horizontal sectlon OIlzthG line Specification of LettersPatent. Patent d 11 29 19118 Application filed March 7,

1918. Serial No. 220,993.

6-6 of Fig. 1 showing the means for clamping the post in-position;

Fig. 7 is a side view of one of the eccentric spindles for supportingthe ball bearing rollers which sustain the siderods of the travelingcarriage;

Fig. 8 is an end view of the spindle;

Fig. 9 is one of the sustaining rollers,

shown in cross section;

Fig. 10 is ..a side elevation of a portion of the machine illustratinthe motor and the carriage, and the positlve lock for angular adjustmentof carriage and saw;

ing horizontally disposed upper and lower' members 4 and 5 and endmembers 6 and 7 is disposed centrally beneath the table, the

member 7 being extended diagonally beyond the end of the table where thecolumn 3 is located so as to brace the table and column and affordgreater stability at the point where the column and the parts which itsustains are positioned. The base of the column rests in a collar 8secured to the member 5 and is encircled by a split sleeve 9 attached toor made as a part of the member 4:,

the sleeve being formed with threaded ears 10 through which pass thethreaded end of a rod 11 provided with a hand wheel 12 so that, ifdesired, the sleeve may be made to clamp to column to hold it to anycircular adjustment that may be given thereto for some desired "angularadjustments of the saw that will be carried by its mandrel on thetraveling carriage that 'willbe sustained from the column.

'On the column, above the tabletop, is

bracket for supporting the traveling carriage in which the saw ismounted. This bracket consists of a sleeve 13 encircling the column andformed with recesses 14; which receive steel guide bars 15 riveted orotherwise secured to oppositesides of the column so as to permit ofvertical adjustment of the carriage to regulate the depth of cut of thesaw mounted on the carriage. The

bracket sleeve has side sleeves 16 to receive side rods of the carriageand also a horizontally extending member 17 which at itsare bored outand fitted with races 21 be-- tween which are fitted ball bearings 22,thus affording anti-friction bearings between the rollers and theirspindles 23 which pass through the rollers and are supported in theboxes 18 and held in position therein by set screws 24. To maintain thecarriage level and insure an even uniform pressure of the side rods ofthe carriage on the rollers under varying conditions, provision is madefor vertical adjustment of the rollers, so that they maybe elevated orlowered as found desirable, by turning or forming the spindleseccentrically as illustrated. Thus, to elevate or lower the rollers soas to obtain the desired pressure between the rollers and I ment of thecarriage to insure the best work.

The carriage is made up of the side rails or rods 25, which arepreferably made of steel, and a connecting cross-head 26 which .isformed with sleeves 27 to receive the side rods which are secured withinthe sleeves 27 to receive the side in any suitable manner so that thecross-head and the rails or rods through a belt 33 or other meansconnected with the shaft of a motor 34, electric or otherwise which maybe suitably supported on the opposite end of the carriage so as to bemoved with the carriage.

To adjust the depth of cut of the saw the bracket which supports thecarriage is adusted vertically by means of a threaded rod 35 threaded inthe bracket extension 7, therod extending through a-guide brace bracket36 and having a bevel pinion 37 at its upper end with WhlCll pinionmeshes another pinion 38 on the end of a shaft 39 having a hand wheel 40so that through such means the bracket and saw carrying carriage may bevertically adjusted to regulate the'depth of cut of the saw. a

For the purpose of holding the saw so as to cut square, or at an angleof 45 degrees, or at right angles, either to the right or to the left, Iprovide the post 3 with a collar 41 and provided with apertured ears 42,preferably five in number, adapted to receive a pin 43 which will passthrough the desired car and enter a hole 43 form d in' a suitable partof the table frame of the machine, for instance in the central rail 4,so that the post will be positively held by the pin to the adjustmentwhich will securethe saw in po sition to cut either square or at theangle desired to which the adjustment is made. The collar will be heldto the post by a set screw 44, preferably for cutting square in thedirection from front to rear of the table. By removing the locking pinand turning the post to bring another ear to register with the pinreceiving hole in the table frame and then inserting the locking pin, acut in the direction desired may be obtained either to the right or leftand at the angle or extent of adjustment provided for. The top of thetable will be preferably recessed to receive the collar. If a cut at anangle other'than that provided for by the positive locking collar isdesired the same may be effected by removal of, the locking pin, thenturning the post to the position desired and then tightening theencircling clamp-ring 9 by means of the screw rod 11, so as to hold thepost by frictional clamping action instead of by the positive lockafforded by the collar and locking pin. At other times when not servingas a clamp, the ring 9 serves as a brace to the post.

The saw arbor and the driving motor both being fixedly attached to thetraveling carriage there will be no slackening or disarrangement of thebelt or driving connection between the motor and saw mandrel in eitherthe vertical or'horizontal adjustment of the carriage and saw; the rearextension of the carriage supporting bracket with-the bear ings for theside rods of the carriage relieve the side rods of the strain of weightof the motor carried by the rods and also make the movement of thecarriage and parts 'supported by it easier, smoother and under moreuniformpressure'than otherwise would be the case; the rigidity of thecolumn in relation to the work table is greater by reasonof the holdingclamp provided, and also by reason of the centrally disposed bracingframe beneath the table top.

The numeral 45 designates an electric switch that may be used withelectric con ductors for supplying the current for runnmg the electricmotor for driving the saw one end and provided with bearings supportinga saw mandrel.

2. A Wood Working machine, comprising an upright post, a bracketadjustable axially of the post and provided with a member extendinghorizontally from the bracket and provided at opposite sides withboxings, a

.saw traveling carriage comprising side rods supported by the boxings ofthe extending member and by sleeves connected, to the bracket, a sawmandrel supported from the carriage, and rollers fitted in the boxingsof the extending member beneath the side rods of the carriage to formroller seats for the rods, and means for vertical adjustment of therollers.

3. A wood working machine, comprising an upright post, a bracketassociated with the post, a member extending horizontally from thebracket'an'd provided at opposite sides with boxings, a saw travelingcarriage comprising side rods supported by the boxings of the extendingmember and by sleeves connected to the bracket, a saw-mandrel sup portedby the carriage, rollers fitted in the boxings of the extending memberbeneath the side rods of the carriage to form seats for the rods, and"eccentrically formed spindles supportl g for vertical adjustment of therollers.

4;. A wood working machine comprising an upright post, a bracketassociated with the post, a member extending horizontally from thebracket and provided at opposite sides with boxings, a saw travelingcarriage comprising side'rods supported by the boxthe rollers andproviding.

ings of the extending member and by sleeves v boxings of the extendingmember beneath the side rods of the carriage to form seats for the rods,said rollers having ball bearing races fitting therein, andeccentrically formed spindles supporting the rollers and providing forvertical adjustment of the rollers.

5. A Wood working machine, comprising a table, an upright rotatable postextending above and below the top of the table, a traveling saw carriageprovided with a saw mandrel supported from the post and adjust-ableaxially thereof, a rigid bracing frame disposed beneath the table top,provided at one end with a diagonally extending leg" and having ahorizontally extending member constituting a support for the lower endof the upright post, and a clamp for holding the post to its rotatableadjustment.

6. A Wood Working machine, comprising a table, an upright rotatable postextending above and below the table top, a traveling saw carriageprovided with a saw mandrel lift ally thereof, a rigid bracing-framedisposed beneath the table top and comprising upper and lowerhorizontally extending members and end legs, one of said legsextendingdiagonally, the upper horizontally extending member of the frame beingprovided with a split sleeve to receive the; upright post and the lowermember constituting a support for the lower end of the post, and meansfor contracting the slit sleeve to clamp the post in its rotatableadjustment.

7. A Wood working machine, comprising a table, an upright rotatable postextending above the table, a traveling saw carriage provided with a sawmandrel supported from the post and adjustable axially thereof, andmeans for positively locking the post at different rotatable adjustmentscomprising a collar secured to the post and ailocking member engagingthe collar and a part of the table in adjustments of the post tosecurethe saw in various cutting positions.

In testimony whereof I aflix my signature.

